B8.5 speaker adapter

[rampantandroid]

Hi all,

Does this adapter (http://www.langtoninfo.com/showitem.aspx?isbn=5032296911048&gclid=CLrygqWNqboCFWfhQgodbxgAnA) work on a B8.5 front door?

Additionally, has anyone done a DIY thread on mounting a new amp, remounting the factory amp and a box that fits in there?

Thanks!
RA